EMAC receive not working

[www220]

点赞，必须的

[www220]

Very cool Rudi. How are you generating the clock?

hi robin

try this:

Code: Select all

..
#include "soc/emac_ex_reg.h"
extern void rtc_plla_ena(bool ena, uint32_t sdm0, uint32_t sdm1, uint32_t sdm2, uint32_t o_div);
..

Code: Select all

PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO16_U, FUNC_GPIO16_EMAC_CLK_OUT);
REG_SET_FIELD(EMAC_EX_CLKOUT_CONF_REG, EMAC_EX_CLK_OUT_H_DIV_NUM, 0);
REG_SET_FIELD(EMAC_EX_CLKOUT_CONF_REG, EMAC_EX_CLK_OUT_DIV_NUM, 0);
REG_CLR_BIT(EMAC_EX_CLK_CTRL_REG, EMAC_EX_EXT_OSC_EN);
REG_SET_BIT(EMAC_EX_CLK_CTRL_REG, EMAC_EX_INT_OSC_EN);

think there is a small mistake in the params
but try this:

Code: Select all

// f_out = f_xtal * (sdm2 + 4) / (2 * (o_div + 2))
//   = 40.000.000,00 *  (1 + 4) / (2 * ( 0 + 2) ) 
//   = 40.000.000,00 *  ( 5) / (2 * ( 2) )
//   = 40.000.000,00 *  ( 5) / (4 )
//   = 200.000.000,00  / ( 4 )
//   = 50.000.000,00 
//   = 50 MHz

// param0= ena
// param1=smd2
// param2=o_div
// param3=?
// param4=?

rtc_plla_ena(1, 1, 0, 0, 0); // 50 MHz
// rtc_plla_ena(1, 5, 1, 0, 0); // 60 MHz
// rtc_plla_ena(1, 0, 2, 0, 0); //  20 MHz ( glass clear)

best wishes
rudi

lan8720使用esp的clk工作正常吗？

[rudi ;-)]

hi robin, hi www220

have plan to do on weekend, but could not wait:

ESP32 generate 50 MHz for xRefer and X_in ( LAN8710A )
clk ok, SMI ok, now create the header for LAN8710A for DHCP and IP

IMG_6055_s.jpg (124.32 KiB) Viewed 14745 times

( clk small curved cause have not filtered pinheader )

IMG_6048_s.jpg (101.5 KiB) Viewed 14745 times

now we have
tlk110
LAN8720

and append
LAN8710A
its the Olimex ESP32 EVB REV A Board
( edit: now we try to get the ip )

best wishes
rudi

[rudi ;-)]

Very cool Rudi. How are you generating the clock?

hi robin

try this:

Code: Select all

..
#include "soc/emac_ex_reg.h"
extern void rtc_plla_ena(bool ena, uint32_t sdm0, uint32_t sdm1, uint32_t sdm2, uint32_t o_div);
..

Code: Select all

PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO16_U, FUNC_GPIO16_EMAC_CLK_OUT);
REG_SET_FIELD(EMAC_EX_CLKOUT_CONF_REG, EMAC_EX_CLK_OUT_H_DIV_NUM, 0);
REG_SET_FIELD(EMAC_EX_CLKOUT_CONF_REG, EMAC_EX_CLK_OUT_DIV_NUM, 0);
REG_CLR_BIT(EMAC_EX_CLK_CTRL_REG, EMAC_EX_EXT_OSC_EN);
REG_SET_BIT(EMAC_EX_CLK_CTRL_REG, EMAC_EX_INT_OSC_EN);

think there is a small mistake in the params
but try this:

Code: Select all

// f_out = f_xtal * (sdm2 + 4) / (2 * (o_div + 2))
//   = 40.000.000,00 *  (1 + 4) / (2 * ( 0 + 2) ) 
//   = 40.000.000,00 *  ( 5) / (2 * ( 2) )
//   = 40.000.000,00 *  ( 5) / (4 )
//   = 200.000.000,00  / ( 4 )
//   = 50.000.000,00 
//   = 50 MHz

// param0= ena
// param1=smd2
// param2=o_div
// param3=?
// param4=?

rtc_plla_ena(1, 1, 0, 0, 0); // 50 MHz
// rtc_plla_ena(1, 5, 1, 0, 0); // 60 MHz
// rtc_plla_ena(1, 0, 2, 0, 0); //  20 MHz ( glass clear)

best wishes
rudi

lan8720使用esp的clk工作正常吗？

@www220
a big Yes



best wishes
rudi

[rudi ;-)]

@www220

get the thing runing with Intern RMII Clk 50 MHz
sometimes i can ping, somtimes there is a long time for it.
sometimes i get no ip. i will try some things like delay's before each register change
and others.

it makes difference sence to run the clk_on process with a try on difference process
have tried:

Code: Select all

// xTaskCreate(&clk_on_task, "clk_on_task", 2048, NULL, (tskIDLE_PRIORITY + 2), NULL);
// xTaskCreatePinnedToCore(&clk_on_task, "clk_on_task", 2048, ParamPTR, 1, NULL, 0);


// core 0: no ip
// core 1: sometimes an ip
// xTaskCreatePinnedToCore(&clk_on_task, "clk_on_task", 2048, NULL, configMAX_PRIORITIES - 1 , NULL, 1); 

and a play on Process Priority

it will take a litle more time to figure it out what the best is.
from my test i can say, in general it is possible to create clk from esp,
to use it is sometimes difference and depending on the art of created "RTOS" process for it

To the comparison i will try this with the silicon rev1 again.

The clk itself is stable, I think the process PRIORITIES / creating claims a lot
So that only a few time slots remain for the processing for ip and ping answere.
Let's see what we can optimize together on the rtos
In the moment I use the external clk for project development and expansion and try to move it later intern rmii clk

best wishes
rudi

[www220]

使用外部clk就涉及到gpio0冲突的问题，现在还没有什么完美的解决方案

[rudi ;-)]

使用外部clk就涉及到gpio0冲突的问题，现在还没有什么完美的解决方案

clk sig is ok ( rigol )
mdc, mdio is ok, can read and set register
only i get no ip

perhabs you ( or robin ) see a mistake in the used header for LAN8710A

#define BASIC_MODE_CONTROL_REG (0x0)
#define SOFTWARE_RESET BIT(15)

#define BASIC_MODE_STATUS_REG (0x1)
#define AUTO_NEGOTIATION_COMPLETE BIT(5)
#define LINK_STATUS BIT(2)

#define PHY_IDENTIFIER_REG (0x2)
#define OUI_MSB_21TO6_DEF 0x0007

#define AUTO_NEG_ADVERTISEMENT_REG (0x4)
#define ASM_DIR BIT(11)
#define PAUSE BIT(10)

#define PHY_LINK_PARTNER_ABILITY_REG (0x5)
#define PARTNER_PAUSE BIT(10)

#define SOFTWARE_STRAP_CONTROL_REG (0x9)
#define SW_STRAP_CONFIG_DONE BIT(15)
#define AUTO_MDIX_ENABLE BIT(14)
#define AUTO_NEGOTIATION_ENABLE BIT(13)
#define AN_1 BIT(12)
#define AN_0 BIT(11)
#define LED_CFG BIT(10)
#define RMII_ENHANCED_MODE BIT(9)

#define PHY_SPECIAL_CONTROL_STATUS_REG (0x1f)
#define AUTO_NEGOTIATION_DONE BIT(12)
#define SPEED_DUPLEX_INDICATION_10T_HALF 0x04
#define SPEED_DUPLEX_INDICATION_10T_FULL 0x14
#define SPEED_DUPLEX_INDICATION_100T_HALF 0x08
#define SPEED_DUPLEX_INDICATION_100T_FULL 0x18
#define SPEED_INDICATION_100T BIT(3)
#define SPEED_INDICATION_10T BIT(2)
#define DUPLEX_INDICATION_FULL BIT(4)

best wishes
rudi

[RobinC]

Have you verified the 8710 is working with an external crystal or oscillator? I didn't get an IP until I connected crs/dv to gpio27. Are you seeing the DHCP request on your server?

Robin

[rudi ;-)]

Have you verified the 8710 is working with an external crystal or oscillator? I didn't get an IP until I connected crs/dv to gpio27. Are you seeing the DHCP request on your server?

Robin

hi robin
saw it after posting - need a scalpel again on weekend
let you know how i get on the REV-A

CRS_DV_GPIO18_p1_rc.jpg (83.67 KiB) Viewed 14642 times

RM3- CRS_DV LAN8710A ..GPIO18
R21- FUNC_GPIO27_EMAC_RX_DV on it for using I2C pulled up and other )

IMG_6094_rc.jpg (212.55 KiB) Viewed 14642 times

best wishes
rudi

[rudi ;-)]

@robin

without words

LAN8710A_pinged.png (63.76 KiB) Viewed 14606 times

best wishes
rudi

need few hacks/mods on EVB-REV-A